Phlox plant named &#39;DPHLOX911&#39;

ABSTRACT

A new and distinct cultivar of  Phlox  plant named ‘DPHLOX911’, characterized by its compact, upright to outwardly spreading and mounding plant habit; moderately vigorous growth habit; freely branching habit; dense and full appearance; freely flowering habit; long flowering period; and red-colored flowers.

Botanical designation: Phlox drummondii.

Cultivar denomination: ‘DPHLOX911’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Phlox plant, botanically known as Phlox drummondii and hereinafter referred to by the name ‘DPHLOX911’.

The new Phlox plant is a product of a planned breeding program conducted by the Inventor in Moshav Mishmar Hashiva, Israel. The objective of the breeding program is to create new mounding and full Phlox plants with numerous attractive flowers and low sensitivity to Powdery Mildew.

The new Phlox plant originated from a cross-pollination conducted by the Inventor in Moshav Mishmar Hashiva, Israel in October, 2011 of a proprietary selection of Phlox drummondii identified as code number PH-Z-100, not patented, as the female, or seed, parent with a proprietary selection of Phlox drummondii identified as code number PH-11-1206, not patented, as the male, or pollen, parent. The new Phlox plant was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross-pollination in a controlled greenhouse environment in Moshav Mishmar Hashiva, Israel in April, 2012.

Asexual reproduction of the new Phlox plant by vegetative terminal cuttings in a controlled greenhouse environment in Moshav Mishmar Hashiva, Israel since April, 2012 has shown that the unique features of this new Phlox plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Phlox plant have not been observed under all possible combinations of environmental and cultural conditions. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘DPHLOX911’. These characteristics in combination distinguish ‘DPHLOX911’ as a new and distinct Phlox plant:

-   -   1. Compact, upright to outwardly spreading and mounding plant         habit.     -   2. Moderately vigorous growth habit.     -   3. Freely branching habit; dense and full appearance.     -   4. Freely flowering habit; long flowering period.     -   5. Red-colored flowers.

Plants of the new Phlox can be compared to plants of the female parent selection. Plants of the new Phlox differ primarily from plants of the female parent selection in the following characteristics:

-   -   1. Plants of the new Phlox are more compact than plants of the         female parent selection.     -   2. Plants of the new Phlox flower earlier than plants of the         female parent selection.     -   3. Plants of the new Phlox and the female parent selection         differ in flower color stability as flower color of plants of         the new Phlox is stable whereas flower color of plants of the         female parent selection is not stable.

Plants of the new Phlox can be compared to plants of the male parent selection. Plants of the new Phlox differ primarily from plants of the male parent selection in the following characteristics:

-   -   1. Plants of the new Phlox are more compact than plants of the         male parent selection.     -   2. Plants of the new Phlox are more upright than plants of the         male parent selection.     -   3. Plants of the new Phlox have larger leaves than plants of the         male parent selection.     -   4. Plants of the new Phlox and the male parent selection differ         in flower shape as flowers of plants of the new Phlox are mostly         round in shape whereas flowers of plants of the male parent         selection are more star-shaped.

Plants of the new Phlox can be compared to plants of Phlox drummondii ‘Duephocher’, disclosed in U.S. Plant Pat. No. 22,982. In side-by-side comparisons conducted in Moshav Mishmar Hashiva, Israel, plants of the new Phlox and ‘Duephocher’ differed in the following characteristics:

-   -   1. Plants of the new Phlox were more compact than plants of         ‘Duephocher’.     -   2. Plants of the new Phlox were more upright than plants of         ‘Duephocher’.     -   3. Plants of the new Phlox had larger leaves than plants of         ‘Duephocher’.     -   4. Plants of the new Phlox and ‘Duephocher’ differed in flower         color as plants of ‘Duephocher’ had darker red-colored flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Phlox plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Phlox plant.

The photograph on the first sheet is a side perspective view of a typical flowering plant of ‘DPHLOX911’ grown in a container.

The photograph on the second sheet is a close-up view of a typical inflorescence of ‘DPHLOX911’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown during the autumn in 12-cm containers in a greenhouse in Moshav Mishmar Hashiva, Israel and under cultural practices typical of commercial Phlox production.

During the production of the plants, day temperatures ranged from 18° C. to 36° C. and night temperatures ranged from 10° C. to 17° C. Plants were pinched one time and were 80 days old when the photographs and description were taken. Supplemental flower information was collected from plants grown in 22-cm containers during the summer in an outdoor nursery in Loudon, N.H. and under cultural practices typical of commercial Diascia production. During the production of these plants, day temperatures averaged 27° C., night temperatures averaged 13° C. and maximum light levels were 10,000 foot-candles. These plants were pinched one time and were 17 weeks old when the supplemental flower information was taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Phlox drummondii ‘DPHLOX911’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of Phlox             drummondii identified as code number PH-Z-100, not patented.         -   Male, or pollen, parent.—Proprietary selection of Phlox             drummondii identified as code number PH-11-1206, not             patented. -   Propagation:     -   -   Type.—By terminal vegetative cuttings.         -   Time to initiate roots, summer.—About five to six days at             temperatures about 20° C.         -   Time to initiate roots, winter.—About seven to eight days at             temperatures ranging from 14° to 18° C.         -   Time to produce a rooted young plant, summer.—About three             weeks at temperatures ranging from 25° to 35° C.         -   Time to produce a rooted young plant, winter.—About four             weeks at temperatures ranging from 14° to 20° C.         -   Root description.—Medium in thickness, fibrous; typically             white in color, actual color of the roots is dependent on             substrate composition, water quality, fertilizer type and             formulation, substrate temperature and physiological age of             roots.         -   Rooting habit.—Freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Herbaceous annual plant; upright to             outwardly spreading and uniformly mounding plant habit;             broad inverted triangle; moderately vigorous growth habit;             freely branching habit with about six primary laterals             developing per plant, each primary lateral with numerous             secondary laterals; dense and bushy appearance.         -   Plant height.—About 14 cm.         -   Plant width (spread).—About 18 cm.         -   Lateral branches.—Length: About 18 cm. Diameter: About 5 mm.             Internode length: About 1.5 cm to 2 cm. Strength: Strong.             Aspect: Upright to outwardly. Texture: Pubescent. Color:             Close to 143C. -   Leaf description:     -   -   Arrangement.—Opposite, simple; sessile.         -   Length.—About 3.5 cm to 5 cm.         -   Width.—About 1.7 cm to 2.3 cm.         -   Shape.—Oblong.         -   Apex.—Acute.         -   Base.—Rounded, clasping.         -   Margin.—Entire.         -   Texture, upper surface.—Slightly pubescent.         -   Texture, lower surface.—Glabrous.         -   Venation pattern.—Pinnate.         -   Color.—Developing and fully expanded leaves, upper surface:             Close to 137B; venation, close to 137B. Developing and fully             expanded leaves, lower surface: Close to 147B; venation,             close to 147B. -   Flower description:     -   -   Flower type and flowering habit.—Single rotate salverform             flowers arranged in small panicles; flowers face mostly             upright to outwardly; freely flowering habit with about four             to eight flowers per inflorescence and about 100 flowers per             plant.         -   Fragrance.—Moderately fragrant, pleasant.         -   Natural flowering season.—Long flowering season, plants             flower continuously from spring until frost in Israel.         -   Postproduction longevity.—Flowers last about five days on             the plant; flowers persistent.         -   Flower buds.—Height: About 1.3 cm. Diameter: About 3 mm.             Shape: Obovate. Color: Close to 59B.         -   Inflorescence height.—About 3.8 cm.         -   Inflorescence diameter.—About 5 cm.         -   Flower diameter.—About 3 cm.         -   Flower depth.—About 1.3 cm.         -   Flower throat diameter.—About 1.8 mm.         -   Flower tube length.—About 1.3 cm.         -   Flower tube diameter, at the base.—About 2.5 mm.         -   Petals.—Quantity per flower and arrangement: Five petals             arranged in a single whorl and fused towards the base into a             narrow tube. Length from throat: About 1.3 cm. Width: About             1.1 cm. Shape: Obovate. Apex: Rounded, obtuse. Margin:             Entire. Texture, petal lobes, upper and lower surfaces:             Smooth, glabrous. Texture, throat: Smooth, glabrous.             Texture, tube: Tomentose. Luster, petal lobes, upper and             lower surfaces: Matte. Luster, throat: Satiny. Luster, tube:             Satiny. Color: Developing petals, upper surface: Close to             58A. Developing petals, lower surface: Close to 58A; towards             the base, close to 155C. Fully expanded petals, upper             surface: Close to 53A; color becoming closer to 58A with             development. Fully expanded petals, lower surface: Close to             58A; towards the base, close to 155C; color do not change             with development. Throat: Close to 60A. Tube: Close to 186D.         -   Sepals.—Quantity per flower and arrangement: Five sepals             arranged in a single whorl and fused towards the base into a             narrow tube. Length: About 8 mm. Width: About 1 mm. Shape:             Lanceolate. Apex: Narrowly acute. Margin: Entire. Texture,             upper and lower surfaces: Smooth, glabrous. Color: When             developing and fully opened, upper surface: Distally, close             to 143A; proximally, close to 143D. When developing and             fully opened, lower surface: Distally, close to 143A;             proximally, close to 143C.         -   Peduncles.—Length: About 2 cm to 4 cm. Diameter: About             1.5 mm. Angle: Upright to about 30° from vertical. Strength:             Strong. Texture: Smooth, glabrous. Color: Close to 144B.         -   Pedicels.—Length: About 1 cm. Diameter: About 1 mm. Angle:             About 30° from peduncle axis. Strength: Strong. Texture:             Smooth, glabrous. Color: Close to 144D.         -   Reproductive organs.—Stamens: Quantity per flower: Typically             five. Anther length: About 1.5 mm. Anther shape: Oblong to             oval. Anther color: Close to 12A. Pollen amount: Abundant.             Pollen color: Close to 14A. Pistils: Quantity per flower:             One. Pistil length: About 4 mm. Stigma shape: Three-parted.             Stigma color: Close to 149D. Style length: About 1 mm. Style             color: Close to 166B. Ovary color: Close to 143B.         -   Seeds.—Length: About 3 mm. Diameter: About 3 mm. Texture:             Smooth, glabrous. Color: Close to N200A. -   Disease & pest resistance: Plants of the new Phlox have not been     noted to be resistant to pathogens and pests common to Phlox plants. -   Temperature tolerance: Plants of the new Phlox have been observed to     tolerate temperatures ranging from about 9° C. to about 38° C. 

It is claimed:
 1. A new and distinct Phlox plant named ‘DPHLOX911’ as illustrated and described. 